Jack for shoe-machines.



E'. E. WINKLEY. JAOK FOR SHOE MACHINES. APPLICATION EILED JAN. l7 1901.

Patented June 14, 1910.

ERASTUS E. WINKLEY, OF LYNN, MASSACHUSETTS.

JACK FOR SHOE-MACHINES.

Patented June 14, 1910.

Original application filed October 8, 1896, Serial No. 608,215. Dividedand this application filed January 17,

To all whom it may concern:

Be it known that I, ERAsTUs E. WINK- LEY, a citizen of the UnitedStates, residing at Lynn, in the county of Essex and State ofMassachusetts, have invented certain new and useful Improvements inJacks for Shoe- Machines; and I do hereby declare the fol lowing to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

The present invention relates to jacks for shoe machines. Y

The object of the present invention is to construct a jack for shoemachines which may be adjusted for rights and lefts and for varioussizes of shoes in order to support the same in proper position to beoperated upon.

To the above end the present invention consists in the jack hereinafterto be described and claimed.

The present application is a divisional one, the improved jack hereindescribed and claimed being described but not claimed in my pendingapplication for U. S. Letters Patent for improvement in heel nailingmachines, Serial No. 608,215, filed Oct. 8, 1896.

In the accompanying drawings which illustrate the preferred form of myinvention Figure 1 is an end elevation of my improved jack, Fig. 2 is aside elevation, and Fig. 8 is a sectional view of the mechanism foractuating the toe support.

In the illustrated embodiment of my'invention, 1 represents the jackplate provided with the spindle 2 (shown in dotted outline in Figs. 1and 2) upon which is fitted the hollow heel standard 3 of the jack. Thisstandard is split as shown at .L and is provided with the ears 5 inwhich is mounted the clamping screw 6 carrying the hand wheel 7.

The above arrangement permits the jack to be swung in the arc of acircle about the spindle 2 to position the shoe relatively to thedevices arranged to operate thereon according as said shoe is a right orleft, when the jack may be clamped by the hand wheel 7. It is to benoted in this connection that in the preferred form of my inventionillustrated in the drawings the spindle 2 about which the jack is swungis substantially in alinement with the center of curvature of Serial No.43,592.

the heel of a shoe placed on the jack so that when the jack is swung tothe right or left the displacement of the heel is reduced to a minimum.

To the upper end of the heel standard 3 is secured the last pin orspindle 8 which is preferably provided with a head 9 upon which the lastis supported, and in order to permit longitudinal tilting of the last Ihave mounted the last spindle in the rounded bearings 10. My improvedjack is also provided, as is customary in such devices, with suitablemeans for supporting the toe of the last, and mechanism is providedwhereby the toe support may be moved toward or from the heel standard toaccommodate various sizes of shoes and also may be raised or lowered totilt the last longitudinally in any desired manner. Projected from thebase of the heel standard 3 is the plate 11 having in its upper surfacethe groove 12 in which the slide 13 carrying the toe support 1 1 isarranged to have longitudinal movement to adjust the toe support nearerto or farther from the heel standard. The slide is held in its adjustedposition by means of the pawl or latch 15 pivoted upon the toesupporting standard 16 and normally held in engagement with the rack orseries of notches 17 on the side of the plate 11 by means of the spring18.

The vertical adjustment of the toe support 14 is obtained in thefollowing manner The rod 19, carrying said toe support, is arranged tohave vertical movement in the standard 16 and is provided with a rack20. A pinion 21 engaging the rack 20 is fixedly mounted upon one end ofthe shaft 22 which is rotatably and slidingly mounted in the bearing 23secured to the toe supporting standard 16. This shaft 22 may be rotatedby means of the hand wheel 24 secured to the outer end thereof, thusraising or lowering the toe support. The mechanism for locking saidsupport in its adjusted position comprises a series of clutch teeth 25upon the pinion 21 arranged to engage a series of similar clutch teeth26 upon a plate 27 fixed to the end of the bearing 23. A spring 28mounted in a recess in the outer end of said bearing engages the collar29 on the shaft 22, and acts normally to move said shaft longitudinallyin its bearing, carrying the clutch teeth 25 into engagement with the,clutch teeth 26 and thus locking the toe support in its adjustedposition.

The clutch teeth may be disengaged in order to permit verticaladjustment of the toe support by moving the shaft inwardly against thetension of the sprin 28, and in order to assist the operator in goingthis I have provided in juxtaposition to the hand wheel 24 a hand wheel30 rotatably mounted upon a bearing 31 but held from longitudinalmovement. This hand wheel 30 serves as a fulcrum or abutment, so that bygrasping both wheels the operator may easily move the shaftlongitudinally to disengage the clutch teeth and thereafter rotate saidshaft to. raise or lower the toe support as desired, hand wheel 30turning with hand wheel 24. The toe support 14 is preferably pivotallymounted upon the rod 19 as at 32, in order that it may have a swingingmovement toward and from the heel support, and in order to limit. thismovement and prevent the toe support from tipping over or falling down Ihave provided the stop 33. A concave bearin or rest plate 34: adapted toreceive the orward end of the last is also provided as is usual in thesedevices.

The operation of my improved jack is as follows :The last having beenplaced upon the last supporting head 9, the last spindle 8 entering thesocket in the last, the latch 15 is thrown out of engagement with therack 16 and the toe support adjusted nearer to or farther from the heelstandard 3 according to the length of the last. The hand Wheels 24 and30: are then grasped by the operator and the former moved toward thelatter, sliding the shaft 22 longitudinally in its bearing 23 anddisengaging the clutch teeth. Both wheels are then rotated to' raise orlower the toe support, the last spindle 8 swinging in its bearings 150as the last is tilted. The hand wheels are then released when the spring28 moves the shaft 22 outwardly in its bearing 23 and the clutch teeth25 on the pinion; 21 engage the clutch teeth 26. on the plate 27,looking the toe support in its adjusted position. The jack is now turnedabout the spindle 2 on the jack plate 1 into position tobe operated uponaccording to whether the shoe is a right or a left, and securely clampedin such position by the hand wheel 7 mounted upon the clamping screw 6.

Having thus described my invention I claim as new and desire to secureby Letters Patent of the United States:

1. A shoe supporting jack, having, in combination, a vertically movabletoe support means to actuate the same comprising a rack and a pinionengaging said rack mounted upon, and rotating with, a longitudinallysliding shaft, and means actuated by the longitudinal movement of theshaft for looking the inion from rotation, substantially as descried.

2. A shoe supporting jack, having, in combination, a vertically movabletoe sup.- port, means to. actuate the toe support comprising a rack anda pinion, and a clutch for locking the pinion from rotation to preventvertical movement of the toe support, substantially as described.

3. A shoe supporting jack, having, in combination, a vertically movabletoe support, a rack and pinion for actuating said toe support, a clutchfor controlling the rotation of said pinion, and means acting nor mallyto actuate said clutch to hold the pinion from rotation and preventvertical movement of the toe support, substantially as described.

4. A shoe supporting jack, having, in combination, a vertically movabletoe support, means to actuate the toe support comprising a rack andpinion, means. for looking the toe support in adjusted position, andmeans for unlocking the toe support and for rotating the pinion,substantially as described.

5. A shoe supporting jack, having in combination, a vertically movabletoe support, means to actuate the toe support comprising a rack andpinion, a device for locking the pinion and a common actuating means foractuating said device to. unlock the pinion and for rotating the pinion,substantially as described.

In testimony whereof I affix my signature,

in presence of two witnesses.

ERASTUS E. WVINKLEY. Witnesses:

BENJAMIN Prnnnrrs, ALFRED H. HILDRETH.

